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多电极介质阻挡放电降解甲苯的实验研究

Keywords: 多电极,阻挡放电,低温等离子体,电场强度,频率

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Abstract:

介质阻挡放电是产生低温等离子体的有效方法.为了增大电晕区影响范围,提高对甲苯的降解能力,本实验在常温常压的环境下,研究了"多电极等离子反应器".实验考察了反应器结构、电场强度、频率、气体流速对甲苯去除率的影响,分析了放电电压与漏失电流的关系.实验结果表明,反应器结构对去除率有显著的影响,高压放电极数量的增加有利于提高去除率,反应器漏失电流随外加电压的增大而增大.甲苯的去除率随电场强度的增强而增大、随气体流速的增大而减小.甲苯的去除率随频率的增强而增大,但频率对去除率的影响不如场强的效果显著.

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